The convicted killer Scott Watson has complained about a psychologist's report given to the Parole Board.
The board has denied parole to Watson, who was convicted of murdering Ben Smart and Olivia Hope in 1998, saying he is at high risk of violent re-offending.
Watson and his supporters have lodged a complaint with the Psychologists Board, saying a report presented to the Parole Board confused him with someone else.
Watson's father, Chris Watson, said the report has the wrong details for his son's birthplace, and appears to be based on somebody else.
"That assessment is under dispute at the moment, because of that there was an original report which was based on somebody else, or a lot of it was based on somebody else, and then there was a second report done the April one which is based largely on that first one."
Corrections said the report was only one source of information at Watson's hearing.